[content shell] move code common to several processes to a common dir

content/shell/shell_browser_main.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/shell_browser_main.h"
 
 #include <iostream>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/utf_string_conversions.h"
 #include "content/public/browser/browser_main_runner.h"
+#include "content/shell/common/shell_switches.h"
+#include "content/shell/common/webkit_test_helpers.h"
 #include "content/shell/shell.h"
-#include "content/shell/shell_switches.h"
 #include "content/shell/webkit_test_controller.h"
-#include "content/shell/webkit_test_helpers.h"
 #include "net/base/net_util.h"
 #include "webkit/support/webkit_support.h"
 
 namespace {
 
 GURL GetURLForLayoutTest(const std::string& test_name,
                          base::FilePath* current_working_directory,
                          bool* enable_pixel_dumping,
                          std::string* expected_pixel_hash) {
   // A test name is formated like file:///path/to/test'--pixel-test'pixelhash
@@ skipping 143 matching lines @@
     }
     exit_code = 0;
   } else {
     exit_code = main_runner_->Run();
   }
 
   main_runner_->Shutdown();
 
   return exit_code;
 }